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X. W. Zhu 《Russian Journal of Coordination Chemistry》2018,44(7):421-424
New dioxomolybdenum(VI) complex [MoO2(L)(CH3OH)], where L is the dianionic form of N'- (3-bromo-5-chloro-2-hydroxybenzylidene)-4-nitrobenzohydrazide (H2L), was prepared and characterized by IR and UV-Vis spectra, as well as single crystal X-ray diffraction (CIF file ССDС no. 1567063). The complex crystallizes as the monoclinic space group P21/c with unit cell dimensions a = 13.8471(10), b = 7.5618(6), c = 17.9445(12) Å, β = 90.107(2)°, V = 1878.9(2) Å3, Z = 4, R1 = 0.0821, wR2 = 0.0907, GOOF = 1.024. X-ray analysis indicates that the complex is a dioxomolybdenum(VI) species with the Mo atom in octahedral coordination. The catalytic oxidation property of the complex with tert-butylhydroperoxide in CH2Cl2 was studied. 相似文献
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Methyl aroylpyruvates reacted with 4-amino-N-carbamimidoylbenzene-1-sulfonamide in acetic acid–ethanol (1: 1) to give methyl 4-aryl-2-{[4-(carbamimidoylsulfamoyl)phenyl]amino}-4-oxobut-2-enoates which were found to exist in solution as mixtures of Z and E isomers. 相似文献
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Zhou Y. Q. Liu W. T. Lu R. D. Jin Y. B. Yang M. D. Chen Wu Cui Y. M. 《Russian Journal of Coordination Chemistry》2019,45(6):467-471
Russian Journal of Coordination Chemistry - A dioxomolybdenum(VI) complex [MoO2L(EtOH)] (I), derived from the hydrazone ligand 2?bromo-N'-(3,5-dichloro-2-hydroxybenzylidene)benzohydrazide... 相似文献
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Liu H. Y. Zou X. L. Yang H. H. Ye Y. F. Yang L. J. 《Russian Journal of Coordination Chemistry》2019,45(11):809-816
Russian Journal of Coordination Chemistry - A hydrazone compound 2-bromo-N'-(2-hydroxy-3-methoxybenzylidene)benzohydrazide (H2L) was prepared and characterized by IR, UV-Vis and NMR spectra.... 相似文献
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2-{[3-(Triethoxysilyl)propyl]amino}pyridine and Derivatives 总被引:1,自引:0,他引:1
L. I. Belousova N. N. Vlasova Yu. N. Pozhidaev M. G. Voronkov 《Russian Journal of General Chemistry》2001,71(12):1879-1882
2-{[3-(Triethoxysilyl)propyl]amino}pyridine is synthesized by condensation of [3-(triethoxysilyl)propyl]amine with 2-aminopyridine. Its peretherification with triethanolamine leads to 2-[(3-silatranylpropyl)amino]pyridine and hydrolytic copolycondensation with tetraethoxysilane to cross-linked organosilicon copolymer {SiO2·2[O1.5Si(CH2)3NHC6H4N]}
n
. The latter in the medium of hydrochloric acid behaves as an anionite in respect of anionic chlorocomplexes of gold(III), platinum(IV), palladium(II) and rhodiumIII). 相似文献
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2-{[4-(N-Hexadecyl-N-methylamino)phenyl]methylene}-propanedinitrile(HMAPN) with typical donor-π-acceptor(D-π-A)structure was synthesized.It could be easily assembled into stable films by LB technique.The photophysical properties of HMAPN were investigated in solution and on LB films.The photoelectric properties of HMAPN were examined and the anodic photocurrent of the ITO electrode modified by the monolayer LB film of HMAPN was measured as 835 nA/cm^2 under the white light of 218.2 mW/cm^2 without bias voltage.The effects of light intensity,bias voltage on the photocurrent were discussed.The possible mechanism of the photocurrent formation was given. 相似文献
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MUHAMMAD Danish SABA Akbar MUHAMMAD Nawaz Tahir MUHAMMAD Naeem Ahmed RABIA Ayub Butt MUHAMMAD Asam Raza MUHAMMAD Ashfaq 《结构化学》2018,(6)
Using a bidentate ligand, a Schiff base 4-({[(Z)-(2-hydroxyphenyl)methyldene]amino}methyl)cyclohexanecarboxylic acid, complex I(ML2, where M = Cd(Ⅱ)) was synthesized and characterized by IR spectroscopy and X-ray crystallography. It crystallizes in monoclinic system, space group C2/c, M_r = 685.04, 0.34 mm × 0.26 mm × 0.14 mm, a = 54.050(3), b = 6.1220(3), c = 9.5081(5) ?, β = 90.229(2)°, Z = 4, C_(30) H_(40) CdN_2 O_9 and V = 3146.2(3) ?~3. Complex I was screened for its bactericidal activity against four bacterial strains Chromohalobactersalexigens, Chromohalobacterisraelensis, Halomonashalofila and Halomonassalina and fungicidal activity against Aspergillusnigerand Aspergillusflavus. Antimicrobial activity results showed that the synthesized complex displayed good anti-fungal activity against two fungal strains. It was found to be inactive against four different bacterial strains analyzed and was negative for bactericidal effect. 相似文献
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卡巴肼分别与水杨醛和香草醛缩合制备1,5-不对称二取代卡巴肼配体,在甲醇溶剂热中,正丁基三氯化锡与配体反应,合成1-(水杨醛)-5-(香草醛)缩卡巴肼丁基锡配合物(B1)和含N,N′-双水杨醛缩连氮分子的丁基锡配合物(B2),经元素分析,IR,1H、119Sn、13C NMR和X射线衍射晶体结构表征,配合物(B1)、(B2)晶体分别属单斜晶系、P21/n空间群和三斜晶系、P1空间群,中心锡与配基原子构成六配位畸形八面体构型,配合物(B1)在DMF-H2O溶剂体系中具有良好的荧光性质,当含水0~10%(V/V)时具有聚集荧光增强效应,含水量大于10%,随含水体积分数增加荧光强度减弱,以至最后淬灭。配体及其配合物(B1)对马齿苋、刺苋、决明子、四九菜心和苋菜5种靶标植物均具有一定生长抑制作用,尤其是配体对马齿苋、刺苋的生长有良好的抑制作用,配合物可以选择性抑制决明子的生长,可作为决明子除草剂的候选化合物。 相似文献
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1 INTRODUCTION Coordination polymers[1~3] with one-, two- or three-dimensional structure and supramolecular compounds[4, 5] formed by weak interactions, such as hydrogen bonds, Van Der Waals’ forces, short-range exclusion forces, etc., have a variety of possible applications ranging from semicon- ductor to catalysts and potentially valuable pro- perties reminiscent of zeolites. So, considerable increasing attention has been focused on the syn- thesis or building of these coordination po… 相似文献
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A new dinuclear oxidovanadium(V) complex, [V2O2(μ-O)2L2], where L is the monoanionic form of 2-[(2-methylaminoethylimini)methyl]-4-trifluoromethoxyphenol (HL), was prepared and characterized by IR, UV-Vis and 1H NMR spectra, as well as single crystal X-ray diffraction (CIF file CCDC no. 1567062). The complex crystallizes as the monoclinic space group P21/c with unit cell dimensions a = 12.974(3), b = 6.572(2), c = 17.205(3) Å, β = 107.300(3)°, V = 1400.7(5) Å3, Z = 2, R1 = 0.0879, wR2 = 0.1208, GOOf = 1.068. X-ray analysis indicates that the complex is a centrosymmetric dinuclear oxidovanadium(V) species with the V atoms in octahedral coordination. The Schiff base and the complex were evaluated for their antibacterial (Bacillus subtilis, Staphylococcus aureus, Escherichia coli, and Pseudomonas fluorescence) activities. The complex has the most activity against B. subtilis with the MIC value of 1.2 μg mL–1. 相似文献
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通过二茂铁甲醛与丙二胺反应得到双二茂铁基醛亚胺配体N~1,N~3-双二茂铁亚甲基丙烷-1, 3-二胺(FcMP), FcMP与MoO_2Cl_2(THF)_2的四氢呋喃溶液作用, 合成了双二茂铁基醛亚胺钼(VI)配合物. 以配合物为催化剂, 叔丁基过氧化氢为氧化剂, 分别以苯乙烯和环己烯为底物, 考察了温度、时间、催化剂量及溶剂对于烯烃均相环氧化反应的催化性能的影响. 结果表明, 在最优实验条件下, 反应12 h, 环己烯的转化率为88%, 环氧环己烷的选择性为98%;苯乙烯的转化率为84%, 氧化苯乙烯的选择性为76%. 催化剂经简单分离可回收使用, 且催化活性基本保持不变. 同时对环氧化反应的机理进行了初步探讨. 相似文献
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H. Y. Qian 《Russian Journal of Coordination Chemistry》2018,44(1):32-38
Two new manganese(III) complexes, [MnIIIL1(Dca)(MeOH)] (I) and [MnIIIL2(N3)2] (II), where L1 and L2 are the dianionic form of N,N'-3,4-chlorophenylene-bis(5-methylsalicylaldimine) (H2L1) and N,N'-3,4-nitrophenylene-bis(5-methylsalicylaldimine) (H2L2), respectively, and Dca is dicyanoamide, have been synthesized and characterized. The complexes were characterized by elemental analyses, IR, UV-Vis spectra, molar conductivity, and single crystal X-ray diffraction (CIF files nos. 1054200 (I), 1054336 (II)). The Mn atoms in the structures are in octahedral coordination. In the crystal structure of complex I, molecules are linked through intermolecular O–H···N hydrogen bonds to form 1D chains running along the x axis. In both complexes, there exist π···π interactions among molecules. The complexes and the Schiff bases were assayed for antibacterial activities against three Gram-positive bacterial strains (B. subtilis, S. aureus, and St. faecalis) and three Gram-negative bacterial strains (E. coli, P. aeruginosa, and E. cloacae) by MTT method. 相似文献
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Russian Journal of Coordination Chemistry - Nickel(II) complexes derived from the bis-Schiff bases N,N'-bis(5-methylsalicylidene)-1,2-diaminocyclohexane (H2La),... 相似文献
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A. P. Gulya Yu. M. Chumakov V. I. Tsapko V. O. Graur K. S. Lozan-Tyrshu E. Janno B. Ya. Antosyak V. F. Rudik 《Russian Journal of General Chemistry》2011,81(9):1859-1866
Salicylic, 5-chloro-5-bromo-5-nitro-, 3-methoxysalicylic, 2-hydroxy-1-naphthoic aldehydes and 2,3-, 2,4-, and 2,5-dihydroxybenzaldehyde
were shown to react in ethanol with 2-(2-aminoethylamino)ethanol in the presence of copper acetate hydrate forming coordination
compounds Cu(L1-9)CH3COO {HL1-8, 2-([2-(2-hydroxyethylamino)ethylimino]methyl}phenol (HL1) and respective chloro(HL2), bromo- (HL3), nitro- (HL4), methoxy- (HL8), or hydroxy-substituted (HL5-7); HL9, 2-{[2-(2-hydroxyethylamine)ethylimino] methylnaphthol)}. Structure of the complex Cu(L3)CH3COO was determined by X-ray diffraction analysis. Coordination polyhedron of its central atom is a distorted tetragonal bipyramid
with (4+1+1) modes of coordinating the copper atom. The bipyramid base is formed by the atoms of phenol oxygen and of azomethine
and imine nitrogen atoms of the ligand (HL3) and the oxygen atom of the acetate ion. Axial apices of the bipyramid are occupied by the alcohol oxygen atoms of the azomethine
(HL3) and the second oxygen atom of the acetate ion. Other complexes are also of monomer structure. Azomethines (HL1-9) behave as monodeprotonated tetradentate O,N,N,O ligands. The thermolysis of substances includes a stage of complete thermal
decomposition (360–530°C). Synthesized complexes show selective antimicrobial activity against a series of standard strains
of Staphylococcus aureus and E. coli at the concentration in the range of 75–300 μg ml−1. 相似文献
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The title Schiff base compound (C11H8N4O), a derivative of pyrazole, has been synthesized by the reaction of salicylaldehyde and 3-amino-4-cyanopyrazole in absolute ethanol and characterized by elemental analyses, IR, ^1H NMR and X-ray single-crystal diffraction. The crystal belongs to the monoclinic system, space group P21/n, with a = 7.5594(7), b = 18.3342(19), c = 22.461(2) A^°, β = 98.419(2)°, V = 3079.5(5) A^°3, Mr = 212.21, Z = 12, F(000) = 1320, Dc = 1.373 g/cm^3, T = 298(2) K, 2 = 0.71073 A^°, the final R = 0.0571 and wR = 0.0493. A total of 5412 unique reflections were collected, of which 1612 with I 〉 2σ(I) were observed. The molecular structure adopts a trans configuration about the C=N double bond. The preliminary biological tests show that the compound has high antibacterial activities. 相似文献